package io.renren.modules.edu.utils;

import java.util.List;

public class ExcelUtils {
    public static StringBuilder getPreError(List<Integer> list){
        StringBuilder ans = new StringBuilder();
        ans.append(list.get(0) );
        for(int i = 1; i < list.size();++i){
            ans.append(',');
            ans.append(list.get(i));
        }
        return ans;
    }
}
